Naughty Naughty

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Naughty Naughty

Naughty Naughty is an achievement in Halo 3: ODST and Halo: The Master Chief Collection. It is awarded for killing 10 Engineers in New Mombasa at night, alone or with another ODST. It is worth 5 Gamerpoints[1] in ODST and 10 in The Master Chief Collection.

In contrast to the Good Samaritan achievement, it is represented by a downward facing ODST helmet lighted below by a red light.


  • If one stumbles upon a group of Covenant forces being shielded by an Engineer and do not wish to give away ones' position by trying to kill the Engineer first, killing the squad the Engineer is shielding will cause it to self-destruct. As long as the player has attacked the Engineer sometime during the attack, the player will get credit for killing it.
  • To conserve ammo, one can look for the Engineers that are isolated from other Covenant troops in the garden areas in the level Mombasa Streets. Even though these Engineers will provide energy shielding for each other, one charged Plasma Pistol shot can kill an Engineer on Normal difficulty.


Achievements in Halo 3: ODST
Campaign Tayari PlazaUplift ReserveKizingo BoulevardONI Alpha SiteNMPD HQKikowani StationData HiveCoastal HighwayCampaign Complete: NormalCampaign Complete: HeroicCampaign Complete: LegendaryListenerTuned InAll EarsAudiophileTouristHeal UpJunior DetectiveGumshoeSuper SleuthWraith KillerBoth TubesLaser BlasterDome InspectorI Like FireNaughty NaughtyGood SamaritanHeadcaseTrading DownDark TimesMy Clothes!Boom, HeadshotPink and DeadlyEwww, StickyStunning!
Firefight Be Like MartyFirefight: Last ExitFirefight: Chasm TenFirefight: WindwardFirefight: Lost PlatoonFirefight: CraterFirefight: Rally PointFirefight: Alpha SiteFirefight: Security Zone
Vidmaster Challenges Vidmaster Challenge: ClassicVidmaster Challenge: Deja VuVidmaster Challenge: Endure